Design and Implementation of an Improved Reduced-order Sliding Mode Controller with PI Control for POESLL Converter

In this paper, an improved reduced-order sliding mode controller with PI controller is discussed for positive output elementary super-lift Luo (POESLL) converter operated in continuous conduction mode. Because of successive switching operation, the dynamic of this converter is nonlinear severely. The proposed controller improves the dynamic and static performance of the converter. The main advantage of the proposed controller compared with other controllers is the direct control and regulation of the output voltage. The performance of this controller is verified for various operating points in MATLAB software. In addition, a laboratory setup is made. Experimental results show the controller has an excellent performance against variations of the operating point.